THTR-300 nuclear power plant
THTR-300 nuclear power plant is a nuclear site in Germany with 1 unit on record. None is currently operating.
Units
| Unit | Status | Type | Model | Gross MW | Online |
|---|---|---|---|---|---|
| THTR-300 nuclear power plant | Retired | HTGR | Pebble bed reactor | 308 | 1987 |
THTR-300 nuclear power plant in context
The one unit with both construction and grid dates on record took 14.5 years from construction start to grid connection; the median across all reactors connected in the 1980s is 7.3 years.
The nearest other tracked nuclear sites are Tihange nuclear power plant (228 km), Doel nuclear power plant (260 km) and Cattenom nuclear power plant (281 km).
Build time by unit
| Unit | Construction start | Grid connection | Years | Fleet median, same decade |
|---|---|---|---|---|
| THTR-300 nuclear power plant | 1971 | 1985 | 14.5 | 7.3 (1980s) |
Nearest tracked nuclear sites
| Site | Country | Distance | Operating GW gross |
|---|---|---|---|
| Tihange nuclear power plant | Belgium | 228 km | 1.1 |
| Doel nuclear power plant | Belgium | 260 km | 1.1 |
| Cattenom nuclear power plant | France | 281 km | 5.4 |
How these are worked out: ranks use gross operating capacity; ages count from the start-up year on record, as on the age page; build times run from construction start to grid connection, as on the build-times page; ratings are the tracker's net and design net capacity, as on the uprates page. Distances are straight-line between exact positions, so a site with only an approximate position gets none. A unit missing a date or a rating is left out of the figure that needs it.
| Location | Hamm, Nordrhein-Westfalen, Germany |
|---|---|
| Coordinates | 51.6803, 7.9720 |
| Elevation | about 80 mabove sea level |
| Setting | About 180 km from the sea |
| Region | Western Europe |
| Units by status | Retired: 1 |
Elevation is read at the listed coordinates from a 30 m terrain model (SRTM 30 m). Two independent models differ by a median of 6 m across our plants and by up to about 40 m on steep or coastal ground, and a point on a shoreline can read as sea level. Distance to the water is measured to a generalised 1:10 million coastline, so a few kilometres or less is not resolved. This is context, not a design-basis or flood-risk figure.
| Owners | Hochtemperatur-Kernkraftwerk GmbH |
|---|---|
| Operators | Hochtemperatur-Kernkraftwerk |
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Sources
- Global Nuclear Power Tracker, Global Energy Monitor, August 2026 release , CC BY 4.0 · retrieved 2026-09-06
- GEM.wiki entry (further reading) , CC BY-SA 4.0, linked, not quoted
How these sources are used, including the corrections applied on top of them and what is deliberately left blank · download the underlying data